KR101567244B1 - Variable Charge Motion System - Google Patents

Variable Charge Motion System Download PDF

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KR101567244B1
KR101567244B1 KR1020140139593A KR20140139593A KR101567244B1 KR 101567244 B1 KR101567244 B1 KR 101567244B1 KR 1020140139593 A KR1020140139593 A KR 1020140139593A KR 20140139593 A KR20140139593 A KR 20140139593A KR 101567244 B1 KR101567244 B1 KR 101567244B1
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vcm
rpm
pwm duty
motor
duty
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KR1020140139593A
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Korean (ko)
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김영민
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020140139593A priority Critical patent/KR101567244B1/en
Priority to US14/817,065 priority patent/US9732683B2/en
Priority to CN201510494280.0A priority patent/CN105525984B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2464—Characteristics of actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F02B1/06—Methods of operating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
    • F02B23/10—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
    • F02B2023/106—Tumble flow, i.e. the axis of rotation of the main charge flow motion is horizontal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D2041/0015—Controlling intake air for engines with means for controlling swirl or tumble flow, e.g. by using swirl valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0406—Intake manifold pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/101—Engine speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
    • F02M27/08—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by sonic or ultrasonic waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Abstract

The present invention provides a motor responsibility control method of a variable charge motion (VCM) system. When the number of current revolutions per minute (RPM) is smaller than a specific RPM in a VCM position learning state of a controller (100), a VCM motor (1) is derivatively controlled to be a pulse width modulation (PWM) duty without consideration of the back pressure of air entering through an intake manifold (20). When the current RPMs are larger than the specific RPM, the VCM motor (1) is derivatively controlled to be the PWM duty considering the back pressure of the air entering through the intake manifold (20). Therefore, PWM duty signal vibration causing a reduction in the response speed of the VCM motor is removed. Specifically, the derivatively controlled PWM duty is added and subtracted in consideration of a closing condition and an opening condition of the VCM valve (5) such that a response control is rapidly achieved when the VCM motor (1) reaches a target position.

Description

가변차지모션 시스템의 모터 응답성제어방법{Variable Charge Motion System}[0001] Variable Charge Motion System [0002]

본 발명은 가변차지모션 시스템(Variable Charge Motion System)에 관한 것으로, 특히 흡입공기의 배압을 고려한 모터의 미분제어가 이루어지는 모터 응답성제어방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a variable charge motion system, and more particularly, to a motor responsiveness control method in which differential control of a motor is performed in consideration of a back pressure of intake air.

최근 들어 강화된 환경 규제는 차량에 적용된 다양한 연비개선 장치나 방식에 대해 보다 강화된 성능개선을 요구하고 있고, 특히 유류비 상승은 그 필요성을 더욱 요구하고 있다.Recently, enhanced environmental regulations require more enhanced performance improvement for various fuel efficiency improvement devices and methods applied to vehicles.

이러한 조건 충족은 엔진의 연소 특성을 더욱 개선시켜줌으로써 구현될 수 있으며, 이를 구현한 기술로 흡입 공기에 텀블(Tumble)을 발생시켜줌으로써 실린더 내의 공기와 연료의 혼합을 좋게 하는 가변차지모션(Variable Charge Motion, 이하 VCM)을 예로 들 수 있다.This condition can be realized by further improving the combustion characteristics of the engine. By implementing this technology, a tumble is generated in the intake air, and thereby a variable charge (variable charge) Motion, hereinafter referred to as VCM).

상기 VCM은 VCM모터(Variable Charge Motion Motor), 인테이크 매니폴드(Intake Manifold)의 흡입공기경로에 구비된 VCM밸브(VCM Valve), DC 모터 타입 VCM 모터와 VCM밸브를 이어주는 연계링크(Linkage Link), VCM모터를 제어하는 ECU(Engine Control Unit 또는 Electronic Control Unit)을 포함한다. 이하, 상기 VCM을 링크타입 VCM으로 칭한다.The VCM includes a VCM (Variable Charge Motion Motor), a VCM valve provided in an intake air path of an intake manifold, a linkage link connecting a DC motor type VCM motor and a VCM valve, And an ECU (Engine Control Unit or Electronic Control Unit) for controlling the VCM motor. Hereinafter, the VCM is referred to as a link type VCM.

상기 링크타입 VCM이 작동되면, VCM 모터의 위치가 ECU에 의한 PID제어와 함께 피드백(Feedback)제어되고, VCM 모터에 의한 VCM밸브의 움직임이 인테이크 매니폴드의 흡입공기통로를 가변시키며, 인 매니폴드의 흡입공기통로 단면적변화는 흡입공기의 텀블(Tumble)을 형성함으로써 실린더 내에서 더욱 향상된 공기와 연료의 혼합율로 연소 특성이 향상된다.When the link type VCM is operated, the position of the VCM motor is feedback-controlled together with the PID control by the ECU. The movement of the VCM valve by the VCM motor varies the intake air passage of the intake manifold, The change of the cross sectional area of the intake air passage to the intake air passage improves the combustion characteristics with the mixing ratio of the air and the fuel in the cylinder by forming the tumble of the intake air.

특히, PID제어 시 ECU는 엔진 흡기량(엔진 맵핑변수)의 변동에 연계된 PWM(Pulse Width Modulation)Duty로 VCM 모터를 제어함으로써 ECU의 목표 위치 추종이 가장 빠르게 구현된다. Particularly, in PID control, ECU controls the VCM motor with PWM (Pulse Width Modulation) duty associated with fluctuation of engine intake quantity (engine mapping parameter), thereby achieving the fastest follow-up of target position of ECU.

국내특허공개 10-2009-0063912(2009년06월18일)Korean Patent Publication No. 10-2009-0063912 (June 18, 2009)

하지만, VCM 모터는 약 150mesc의 응답속도를 가지며, 적분/미분 개념의 PID중 미분제어(D)의 PWM DUTY로 목표 위치 도달 후 이루어지는 모터 DUTY 감속으로 목표에 도달하도록 제어됨으로써 신속한 타켓 위치 미 도달 시 노이즈로 인한 신호 진동이 발생될 수 있다.However, since the VCM motor has a response speed of about 150 mesc and is controlled to reach the target with the motor DUTY deceleration after reaching the target position with the PWM DUTY of the derivative control (D) among the PID of the integral / differential concept, Signal vibrations due to noise may occur.

특히, VCM 모터는 VCM 밸브와 링크로 연결됨으로써 인테이크 매니폴드의 흡입공기통로를 흐르는 흡입공기 배압의 힘에 의한 영향에 놓임으로써 목표 위치 도달 후 신속하지 못한 목표 도달은 DUTY 감속 신호의 노이즈 진동을 일으킬 수밖에 없다.In particular, since the VCM motor is linked with the VCM valve, it is affected by the force of the intake air backpressure flowing through the intake air passage of the intake manifold, so that the non-rapid target reaching the target position causes noise vibration of the DUTY deceleration signal There is no other choice.

그러므로, 응답 속도를 향상시키는 미분제어 PWM DUTY의 부적합한 설정은 VCM 모터에 대한 외란이나 노이즈의 영향을 더욱 크게 하고, 특히 과도한 PWM DUTY 사용에 의한 임계온도초과(약 200도 이상) 시 VCM 모터 코일 소손도 가져올 수 있다.Therefore, improper setting of the derivative control PWM DUTY that improves the response speed further increases the influence of disturbance or noise on the VCM motor, particularly when the excessive temperature exceeds the critical temperature (more than 200 degrees) by the use of excessive PWM duty, .

이에 상기와 같은 점을 감안한 본 발명은 VCM밸브에 연결된 VCM 모터의 미분제어 PWM DUTY가 인테이크 매니폴드의 흡입공기배압으로부터 받는 저항력을 고려해 인가됨으로써 PWM DUTY 신호 진동이 해소되고, 특히 미분제어 PWM DUTY가 VCM밸브의 닫힘과 열림 조건을 고려해 가감됨으로써 VCM모터의 목표 위치 도달 시 신속한 응답제어가 이루어지는 가변차지모션 시스템의 모터 응답성제어방법을 제공하는데 목적이 있다.Accordingly, the present invention takes the differential control PWM DUTY of the VCM motor connected to the VCM valve into consideration in consideration of the resistance received from the intake air back pressure of the intake manifold, so that the PWM DUTY signal vibration is eliminated, The present invention provides a control method of a motor responsiveness of a variable charge motion system in which a VCM motor is quickly added to or subtracted from a target position of a VCM motor.

상기와 같은 목적을 달성하기 위한 본 발명의 모터 응답성제어방법은 (A) VCM모터에 PWM DUTY(Pulse Width Modulation DUTY)를 인가해 미분제어하는 제어기의 VCM포지션학습완료에서 현재 엔진회전수(rpm)가 특정 엔진회전수(rpm)보다 큰지 여부를 판단하는 DUTY모드조건단계; (B) 상기 현재 엔진회전수(rpm)와 상기 특정 엔진회전수(rpm)의 크기 관계로 상기 VCM모터의 응답이 인테이크 매니폴드(Intake Manifold)의 흡입공기배압에 의해 영향을 받는지 판단하는 DUTY모드판단단계; (C) 상기 현재 엔진회전수(rpm)가 상기 특정 엔진회전수(rpm)보다 작으면, 상기 흡입공기배압을 고려하지 않는 일반정상 PWM DUTY가 상기 VCM모터로 인가되는 일반정상 DUTY제어모드단계; (D) 상기 현재 엔진회전수(rpm)가 상기 특정 엔진회전수(rpm)보다 크면, 상기 흡입공기배압을 고려한 신속응답 PWM DUTY가 상기 VCM모터로 인가되는 신속응답 DUTY제어모드단계; 로 수행되는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a motor response control method comprising: (A) performing a VCM position learning by applying a PWM DUTY (Pulse Width Modulation DUTY) to a VCM motor, ) Is greater than a specific engine speed (rpm); (B) a DUTY mode for determining whether the response of the VCM motor is influenced by the intake air back pressure of the intake manifold according to the magnitude relation between the current engine speed (rpm) and the specific engine speed (rpm) Determining; (C) a normal normal duty control mode in which, when the current engine speed (rpm) is less than the specific engine speed (rpm), a normal normal PWM duty that does not consider the intake air back pressure is applied to the VCM motor; (D) a quick response DUTY control mode step in which a quick response PWM DUTY considering the intake air back pressure is applied to the VCM motor if the current engine speed (rpm) is greater than the specific engine speed (rpm); As shown in FIG.

상기 VCM포지션학습완료상태는 상기 제어기의 90% PWM DUTY 인가이다. 상기 특정 엔진회전수(rpm)는 1,500RPM이다.The VCM position learning completion status is 90% PWM DUTY validity of the controller. The specific engine speed (rpm) is 1,500 RPM.

상기 일반정상 PWM DUTY 크기는 상기 VCM모터에 인가되는 0% ~100% PWM DUTY중 30% ~65%이다. 상기 신속응답 PWM DUTY크기는 상기 VCM모터에 인가되는 0% ~100% PWM DUTY중 30% PWM DUTY가 기준되고, 상기 VCM모터가 인테이크 매니폴드의 흡기통로에 설치된 VCM밸브를 닫을 때 30% PWM DUTY보다 큰 반면 상기 VCM모터가 상기 VCM밸브를 열 때 30% PWM DUTY보다 작다. 상기 30% PWM DUTY를 증가시키거나 줄여주는 PWM DUTY 크기는 엔진회전수(RPM)에 따라 다르게 적용한다.The normal normal PWM DUTY size is 30% to 65% of the 0% to 100% PWM DUTY applied to the VCM motor. The quick response PWM DUTY size refers to a 30% PWM DUTY of 0% to 100% PWM DUTY applied to the VCM motor. When the VCM motor closes the VCM valve installed in the intake passage of the intake manifold, the 30% PWM DUTY While the VCM motor is less than the 30% PWM DUTY when opening the VCM valve. The PWM DUTY size, which increases or decreases the 30% PWM DUTY, is applied differently depending on the engine speed (RPM).

상기 흡입공기배압은 대기에서 도입되는 외기흐름 또는 EGR(Exhaust Gas Recirculation)가스와 섞인 외기흐름으로 형성된다. The intake air back pressure is formed by an outside air flow mixed with an outside air flow introduced into the atmosphere or an EGR (Exhaust Gas Recirculation) gas.

이러한 본 발명은 외란조건을 고려한 미분제어 PWM DUTY로 VCM모터의 신속한 목표 위치 도달이 이루어지고, VCM모터에 연계된 VCM 밸브의 작동도 신속하게 이루어짐으로써 VCM모터의 노이즈나 외란에 대한 강건성이 크게 향상되며, 특히 VCM모터의 응답성 향상으로 가속 시 링크타입 VCM의 응답성 관련 운전성이 크게 향상되는 효과가 있다.In the present invention, the VCM motor is quickly reached to the target position by the differential control PWM DUTY considering the disturbance condition, and the operation of the VCM valve connected to the VCM motor is performed quickly, thereby remarkably improving the robustness against noise and disturbance of the VCM motor In particular, since the responsiveness of the VCM motor is improved, the responsiveness of the link type VCM during acceleration is greatly improved.

또한, 본 발명은 VCM 모터 코일 소손을 일으키는 과도한 PWM DUTY 사용 방지로 VCM모터 소손에 의한 클레임이 제기되지 않음으로써 링크타입 VCM의 고객 품질 만족 지수가 크게 향상되는 효과가 있다.In addition, the present invention has the effect of greatly improving the customer satisfaction index of the link type VCM because the excessive use of the PWM DUTY which causes the burning of the VCM motor coil does not cause a claim due to the burning of the VCM motor.

도 1은 본 발명에 따른 가변차지모션 시스템의 모터 응답성제어방법의 순서도이고, 도 2는 본 발명에 따른 모터 응답성제어가 적용된 가변차지모션 시스템의 구성 예이며, 도 3은 본 발명에 따른 모터 응답성제어 시 구현되는 PID제어의 예이다.2 is a configuration example of a variable charge motion system to which motor responsiveness control according to the present invention is applied, and Fig. 3 is a flowchart illustrating a method of controlling the motor responsiveness of a variable charge motion system according to the present invention. This is an example of PID control implemented when controlling the motor responsiveness.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명하며, 이러한 실시예는 일례로서 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 여러 가지 상이한 형태로 구현될 수 있으므로, 여기에서 설명하는 실시예에 한정되지 않는다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which illustrate exemplary embodiments of the present invention. The present invention is not limited to these embodiments.

도 1은 본 실시예에 따른 가변차지모션 시스템의 모터 응답성제어방법의 순서를 나타낸다. 또한, 도 2는 모터 응답성제어방법으로 제어되는 가변차지모션 시스템의 구성 예를 나타낸다. 그러므로, 모터 응답성제어방법에 대한 설명은 도 2의 가변차지모션 시스템을 통해 설명된다.Fig. 1 shows a procedure of a method for controlling the motor responsiveness of the variable charge motion system according to the present embodiment. 2 shows an example of the configuration of a variable charge motion system controlled by the motor responsiveness control method. Therefore, a description of the method of controlling the motor responsiveness is described through the variable charge motion system of Fig.

S10은 VCM 포지션 학습 로직을 시작하는 단계로서, 이는 VCM모터(1)를 제어하는 제어기(10)에서 구현된다. 이를 위해, 제어기(10)에는 VCM 모터조건을 판단하는 VCM 모터조건 판단부(10-1), VCM의 제어 모드를 판단하는 VCM 모드 처리부(10-2), PWM DUTY(Pulse Width Modulation DUTY)를 VCM모터(1)로 출력하는 인터페이스(10-3)가 더 포함되고, VCM모터 센서(1-1)를 이용해 VCM모터(1)의 전압 검출값을 검출한다.S10 is the step of starting the VCM position learning logic, which is implemented in the controller 10 that controls the VCM motor 1. [ To this end, the controller 10 is provided with a VCM motor condition determining unit 10-1 for determining a VCM motor condition, a VCM mode processing unit 10-2 for determining a VCM control mode, and a PWM DUTY (Pulse Width Modulation DUTY) And further includes an interface 10-3 for outputting to the VCM motor 1 and detects the voltage detection value of the VCM motor 1 using the VCM motor sensor 1-1.

S20은 최초 학습 조건 판단 여부를 확인하는 단계로서, 이는 제어기(10)가 VCM모터(1)의 VCM 포지션을 학습하였는가로 판단된다. 그러므로, S20의 최초 학습 조건 판단 결과 VCM 포지션 학습이 이루어졌다면 S40으로 전환하지만 VCM 포지션 학습이 이루어지지 않았다면 S30으로 진입한다.S20 is a step of confirming whether or not the initial learning condition is judged. It is judged that the controller 10 has learned the VCM position of the VCM motor 1. Therefore, if the VCM position learning is performed as a result of the determination of the initial learning condition of S20, the process proceeds to S40, but if the VCM position learning has not been performed, the process proceeds to S30.

S30은 VCM DUTY 인가를 통해 VCM 포지션 학습이 이루어지는 단계로서, 이를 위해 제어기(10)는 PWM DUTY를 VCM모터(1)로 출력해 VCM모터(1)의 작동에 따른 VCM 포지션을 학습한다. 특히, PWM DUTY는 90% VCM DUTY까지 인가한다. 이때, VCM DUTY 인가에 의한 VCM모터(1)의 제어는 도 2에 예시된 PID제어블록 중 미분제어(D)로 구현된다.The controller 10 outputs the PWM DUTY to the VCM motor 1 so as to learn the VCM position according to the operation of the VCM motor 1. In step S30, the VCM position learning is performed through the VCM DUTY. In particular, the PWM DUTY applies up to 90% VCM DUTY. At this time, the control of the VCM motor 1 by the VCM DUTY control is implemented by differential control (D) among the PID control blocks illustrated in FIG.

S40은 VCM 포지션 학습 후 엔진조건을 판단하는 단계로서, 이를 위해 제어기(10)는 엔진회전수(RPM)를 검출하고, 엔진회전수(RPM)가 특정회전수(RPM)보다 큰지를 비교한다. 이때, 특정회전수(RPM)는 1500RPM을 적용한다.S40 is a step of determining the engine condition after learning the VCM position. To this end, the controller 10 detects the engine speed RPM and compares the engine speed RPM with a specific speed RPM. At this time, the specific rotation number (RPM) is 1500 RPM.

S40의 판단 결과 엔진회전수(RPM)가 1500RPM보다 작은 경우 S50으로 진입함으로써 제어기(10)는 일반정상 DUTY제어모드로 전환하고, S60과 같이 VCM모터(1)에 인가되는 PWM DUTY의 범위를 약 30% ~65%로 변화시켜 준다. 상기 일반정상 DUTY제어모드는 인테이크 매니폴드(20)의 흡입공기배압이 VCM밸브(5)의 밸브 암(5B)과 연결된 플랩(5A)에 주는 영향이 거의 없음을 의미한다. 여기서, 상기 흡입공기배압은 대기에서 도입되는 외기와 배기가스에서 공급되는 EGR(Exhaust Gas Recirculation)가스로 형성된다.As a result of the determination in S40, if the engine speed RPM is less than 1500 RPM, the controller 10 shifts to the normal normal duty control mode by entering S50, and the range of the PWM DUTY applied to the VCM motor 1 is set to about Change it from 30% to 65%. The normal normal duty control mode means that the intake air back pressure of the intake manifold 20 hardly affects the flap 5A connected to the valve arm 5B of the VCM valve 5. [ Here, the intake air back pressure is formed by the outside air introduced from the atmosphere and the EGR (exhaust gas recirculation) gas supplied from the exhaust gas.

반면, S40의 판단 결과 엔진회전수(RPM)가 1500RPM보다 큰 경우 S50-1로 진입함으로써 제어기(10)는 신속응답 DUTY제어모드로 전환하고, S60-1과 같이 VCM모터(1)에 인가되는 PWM DUTY 크기를 달리함으로써 흡입공기배압의 영향 하에서 VCM모터(1)의 목표 위치 도달 시 신속한 응답제어가 이루어지도록 한다.On the other hand, if it is determined in S40 that the engine speed RPM is greater than 1500 RPM, the controller 10 switches to the quick response DUTY control mode in S50-1, By varying the PWM DUTY size, quick response control is achieved when the VCM motor 1 reaches the target position under the influence of the intake air back pressure.

구체적으로, VCM모터(1)의 PWM DUTY 인가식은 다음과 같이 설정된다.Concretely, the PWM DUTY application formula of the VCM motor 1 is set as follows.

VCM밸브 닫힘 시 VCM모터 PWM DUTY = 30% + [+Fgas(흡입공기배압에 의한 저항력)] 또는 VCM밸브 열림 시 VCM모터 PWM DUTY = 30% - [-Fgas(흡입공기배압에 의한 부가력)VCM motor PWM DUTY = 30% + [+ Fgas (Resistance by suction air back pressure)] or VCM motor when VCM valve is open VCM motor PWM DUTY = 30% - [-Fgas (Additional force by intake air back pressure)

여기서, [+Fgas(흡입공기배압에 의한 저항력)] 및 [-Fgas(흡입공기배압에 의한 부가력)은 PWM DUTY 크기로 변환됨으로써 PWM DUTY 크기는 30% 이상이나 30% 이하로 인가된다.Here, [+ Fgas (resistance due to intake air back pressure)] and [-Fgas (addition force due to intake air back pressure) are converted into PWM DUTY size so that the PWM DUTY size is applied to 30% or more but 30% or less.

상기 PWM DUTY 인가식의 적용 방식은 도 3의 미분제어의 예(A)를 통해 예시된다. 특히, Fgas 크기는 1500~2500 rpm(엔진회전수)에서 10Ncm이고, 2500~3500 rpm(엔진회전수)에서 13 Ncm, 3500~4500 rpm(엔진회전수)에서 18Ncm, 4500 이상 rpm(엔진회전수)에서 22 Ncm로 변화된다. 이는, Fgas가 압력 = 힘/ 단면적의 관계로부터 계산되고, 압력인 흡입 공기압은 엔진회전수(RPM)에 따라 변화됨에 기인된다. 일례로, 흡입 공기압 = 20N/cm2(= 2bar = 200 Kpa), 13cm의 플랩반경을 갖는 VCM밸브(5)의 단위면적= 3.14X 0.65 X 0.65일 때, F gas = 26.533 Ncm 로 결정된다.The application method of the PWM DUTY application formula is exemplified through the example (A) of the differential control of FIG. In particular, the Fgas size is 10 Ncm at 1500 to 2500 rpm (engine speed), 13 Ncm at 2500 to 3500 rpm (engine speed), 18 Ncm at 3500 to 4500 rpm (engine speed) ) To 22 Ncm. This is because Fgas is calculated from the relationship of pressure = force / cross sectional area, and the intake air pressure, which is a pressure, is changed according to the engine speed (RPM). For example, F gas = 26.533 Ncm is determined when the intake air pressure = 20 N / cm 2 (= 2 bar = 200 Kpa) and the unit area of the VCM valve 5 having a flap radius of 13 cm = 3.14 X 0.65 X 0.65.

그러므로, 신속응답 DUTY제어모드에서는 30% PWM DUTY를 기준으로하고, VCM밸브(5)의 닫힘 시에는 VCM모터(1)의 PWM DUTY 크기를 30% 보다 크게 해 VCM밸브(5)의 닫힘을 늦춰주는 Fgas의 영향이 극복되고 반면 VCM밸브(5)의 열림 시에는 VCM모터(1)의 PWM DUTY 크기를 30% 보다 작게 해 VCM밸브(5)의 열림을 빠르게 하는 Fgas의 영향이 극복된다. 이로 인한 결과는 도 3의 PID제어 특성결과(B)를 통해 예시된다.Therefore, in the quick response DUTY control mode, the 30% PWM DUTY is used as a reference, and when the VCM valve 5 is closed, the PWM DUTY size of the VCM motor 1 is made larger than 30% to delay the closing of the VCM valve 5 While the influence of Fgas which overcomes the influence of Fgas is overcome, when the VCM valve 5 is opened, the influence of the Fgas which makes the VCM motor 1 PWM duty smaller than 30% and the VCM valve 5 opening is overcome is overcome. The result of this is illustrated through the PID control characteristic result (B) of Fig.

전술된 바와 같이, 본 실시예에 따른 가변차지모션 시스템의 모터 응답성제어방법은 제어기(100)의 VCM포지션학습 상태에서 현재 엔진회전수(rpm)와 특정 엔진회전수(rpm)보다 작을 때 인테이크 매니폴드(20)의 흡입공기배압을 고려하지 않는 PWM DUTY로 VCM모터(1)가 미분제어되고, 반면 현재 엔진회전수(rpm)가 특정 엔진회전수(rpm)보다 클 때 인테이크 매니폴드(20)의 흡입공기배압을 고려한 PWM DUTY로 VCM모터(1)가 미분제어됨으로써 VCM 모터 응답속도저하를 가져오는 PWM DUTY 신호 진동이 해소되고, 특히 미분제어 PWM DUTY가 VCM밸브(5)의 닫힘과 열림 조건을 고려해 가감됨으로써 VCM모터(1)의 목표 위치 도달 시 신속한 응답제어가 이루어진다.As described above, the method for controlling the motor responsiveness of the variable charge motion system according to the present embodiment is a method for controlling the motor responsiveness of the intake valve when the VCM position learning state of the controller 100 is smaller than the current engine speed rpm and the specific engine speed rpm. The VCM motor 1 is differentially controlled by the PWM DUTY that does not take into account the intake air back pressure of the manifold 20 while the current manifold 20 when the current engine speed rpm is higher than the specific engine speed rpm ) Of the VCM motor 1 is controlled by the PWM DUTY taking into consideration the intake air back pressure of the VCM motor 5, and thus the PWM DUTY signal vibration, which causes the VCM motor response speed drop, is eliminated. Particularly, the differential control PWM DUTY closes and opens the VCM valve 5 Speed response control is performed when the VCM motor 1 reaches the target position.

1 : VCM모터(Variable Charge Motion Motor)
1-1 : VCM모터 센서
3 : 연계링크(Linkage Link) 5 : VCM밸브(VCM Valve)
5A : 플랩(Flap) 5B : 밸브 암
10 : 제어기 10-1 : VCM 모터조건 판단부
10-2 : VCM 모드 처리부
10-3 : 인터페이스
20 : 인테이크 매니폴드(Intake Manifold)1: VCM motor (Variable Charge Motion Motor)
1-1: VCM Motor Sensor
3: Linkage Link 5: VCM Valve (VCM Valve)
5A: Flap 5B: Valve arm
10: Controller 10-1: VCM motor condition judging unit
10-2: VCM mode processing section
10-3: Interface
20: Intake Manifold

Claims (7)

(A) VCM모터에 PWM DUTY(Pulse Width Modulation DUTY)를 인가해 미분제어하는 제어기의 VCM포지션학습완료에서 현재 엔진회전수(rpm)가 특정 엔진회전수(rpm)보다 큰지 여부를 판단하는 DUTY모드조건단계;
(B) 상기 현재 엔진회전수(rpm)와 상기 특정 엔진회전수(rpm)의 크기 관계로 상기 VCM모터의 응답이 인테이크 매니폴드(Intake Manifold)의 흡입공기배압에 의해 영향을 받는지 판단하는 DUTY모드판단단계;
(C) 상기 현재 엔진회전수(rpm)가 상기 특정 엔진회전수(rpm)보다 작으면, 상기 흡입공기배압을 고려하지 않는 일반정상 PWM DUTY가 상기 VCM모터로 인가되는 일반정상 DUTY제어모드단계;
(D) 상기 현재 엔진회전수(rpm)가 상기 특정 엔진회전수(rpm)보다 크면, 상기 흡입공기배압을 고려한 신속응답 PWM DUTY가 상기 VCM모터로 인가되는 신속응답 DUTY제어모드단계;
로 수행되는 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.
(A) a DUTY mode for judging whether or not the current engine speed (rpm) is greater than a specific engine speed (rpm) at completion of VCM position learning of a controller that performs differential control by applying a PWM DUTY (Pulse Width Modulation DUTY) Conditional step;
(B) a DUTY mode for determining whether a response of the VCM motor is affected by an intake air back pressure of an intake manifold in relation to a magnitude relation between the current engine speed (rpm) and the specific engine speed (rpm) Determining;
(C) a normal normal duty control mode in which, when the current engine speed (rpm) is less than the specific engine speed (rpm), a normal normal PWM duty that does not consider the intake air back pressure is applied to the VCM motor;
(D) a quick response DUTY control mode step in which a quick response PWM DUTY considering the intake air back pressure is applied to the VCM motor if the current engine speed (rpm) is greater than the specific engine speed (rpm);
Of the variable responsive motion system.
청구항 1에 있어서, 상기 (A)에서, 상기 VCM포지션학습완료상태는 상기 제어기의 90% PWM DUTY 인가인 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.
The method according to claim 1, wherein the VCM position learning completion status is 90% PWM DUTY validity of the controller (A).
청구항 1에 있어서, 상기 (B)에서, 상기 특정 엔진회전수(rpm)는 1,500RPM인 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.
The method according to claim 1, wherein, in (B), the specific engine speed (rpm) is 1,500 RPM.
청구항 1에 있어서, 상기 (C)에서, 상기 일반정상 PWM DUTY 크기는 상기 VCM모터에 인가되는 0% ~100% PWM DUTY중 30% ~65%인 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.
The method of claim 1, wherein the normal normal PWM DUTY size is between 30% and 65% of 0% to 100% PWM DUTY applied to the VCM motor. Control method.
청구항 1에 있어서, 상기 (D)에서, 상기 신속응답 PWM DUTY크기는 상기 VCM모터에 인가되는 0% ~100% PWM DUTY중 30% PWM DUTY가 기준되고, 상기 VCM모터가 인테이크 매니폴드의 흡기통로에 설치된 VCM밸브를 닫을 때 30% PWM DUTY보다 큰 반면 상기 VCM모터가 상기 VCM밸브를 열 때 30% PWM DUTY보다 작은 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.
The method of claim 1, wherein the quick response PWM DUTY size is based on a 30% PWM DUTY of 0% to 100% PWM DUTY applied to the VCM motor, Is greater than 30% PWM DUTY when closing the VCM valve installed in the VCM motor, whereas the VCM motor is less than 30% PWM DUTY when opening the VCM valve.
청구항 5에 있어서, 상기 30% PWM DUTY를 증가시키거나 줄여주는 PWM DUTY 크기는 엔진회전수(RPM)에 따라 다르게 적용되는 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.
The method according to claim 5, wherein the PWM DUTY size for increasing or decreasing the 30% PWM DUTY is applied differently according to engine RPM.
청구항 1에 있어서, 상기 흡입공기배압은 대기에서 도입되는 외기흐름 또는 EGR(Exhaust Gas Recirculation)가스와 섞인 외기흐름으로 형성되는 것을 특징으로 하는 가변차지모션 시스템의 모터 응답성제어방법.The method according to claim 1, wherein the intake air back pressure is formed by an outside air flow mixed with an outside air flow or an EGR (Exhaust Gas Recirculation) gas introduced into the atmosphere.
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